beccafico vs western Orphean warbler

beccafico

noun
  • A small bird, Sylvia hortensis, the figpecker. 

western Orphean warbler

noun
  • Sylvia hortensis, an Old World warbler. Now sometimes Curruca hortensis. 

How often have the words beccafico and western Orphean warbler occurred in a corpus of books? (source: Google Ngram Viewer )